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Head-to-head Updated May 2026

Cooper CS7 vs Sumitomo HTR Z III — Compared (May 2026)

Our Relative Score blends 60% objective test data with 40% owner-review signal — so any two tires can be compared even if they were never tested on the same day.

Tire A Cooper

Cooper CS7

Summer Premium Touring tires

Cooper CS7 tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
68/100
1 owner review
Dry
80
Wet
80
Snow
–
Comfort
80
Noise
–
Treadwear
–
Handling
70
Check price on Amazon

Prices change daily — check the retailer for your size.

VS
Tire B Sumitomo

Sumitomo HTR Z III

Sumitomo HTR Z III tread pattern
Objective (60%)
–/100
No test data yet
User signal (40%)
84/100
42 owner reviews
Dry
92
Wet
81
Snow
52
Comfort
89
Noise
87
Treadwear
82
Handling
80
Check price on Amazon

Prices change daily — check the retailer for your size.

VerdictWinner: Sumitomo HTR Z III — better dry, handling and comfort. It leads or ties in every category we score.
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Category breakdown

7 categories, side by side

Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.

Dry

Weight: Neutral
Score (0–100) HTR Z III leads by 12
A
80
B
92
Why this score
SourceCS7HTR Z III
Tyre Reviews owners 80 87
SimpleTire owners – 95

Wet

Weight: Important
Score (0–100) HTR Z III leads by 1
A
80
B
81
Why this score
SourceCS7HTR Z III
Tyre Reviews owners 80 80
SimpleTire owners – 82

Snow

Weight: Neutral
Score (0–100)
A
–
B
52
Why this score
SourceCS7HTR Z III
SimpleTire owners – 52

Comfort

Weight: Neutral
Score (0–100) HTR Z III leads by 9
A
80
B
89
Why this score
SourceCS7HTR Z III
Tyre Reviews owners 80 86
SimpleTire owners – 91

Noise

Weight: Neutral
Score (0–100)
A
–
B
87
Why this score
SourceCS7HTR Z III
SimpleTire owners – 87

Treadwear

Weight: Important
Score (0–100)
A
–
B
82
Why this score
SourceCS7HTR Z III
Tyre Reviews owners – 82
SimpleTire owners – 82

Handling

Weight: Neutral
Score (0–100) HTR Z III leads by 10
A
70
B
80
Why this score
SourceCS7HTR Z III
Tyre Reviews owners 70 80

Scores at a glance

CategoryCooper CS7Sumitomo HTR Z III
Relative Score 78 85
Dry 80 92
Wet 80 81
Snow – 52
Comfort 80 89
Noise – 87
Treadwear – 82
Handling 70 80

Higher is better. The Relative Score follows your weights below; category scores do not change.

Personalize

Weight the categories that matter to you

Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.

Neutral
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Important
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Neutral
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Neutral
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Neutral
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Important
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Neutral
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Recomputed
Headline score

Tire A

Tire B

Only categories both tires have data for count toward the headline score.

From owners

Pros, cons & observations

Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.

Tire A Cooper CS7

Not enough owner reviews yet to extract themes.

Tire B Sumitomo HTR Z III

The Sumitomo H/TR Z III is widely regarded as a high-value performance tire that offers a compelling balance of dry grip, comfort, and affordability. While it is frequently praised as a cost-effective alternative to premium brands for daily driving and spirited street use, some users note limitations in extreme wet-weather cornering and high-horsepower traction.

Pros

  • Excellent price-to-performance ratio
  • Strong dry handling and steering feedback
  • Quiet and comfortable ride quality
  • Predictable performance for daily driving

Cons

  • Inconsistent wet-weather side grip during cornering
  • Limited traction under heavy acceleration on high-horsepower vehicles
  • Not suitable for winter or freezing conditions
  • Variable tread life depending on driving style and vehicle weight

Observations

  • High-horsepower RWD vehicles (e.g., 500whp Mustang) may experience significant wheel spin compared to premium performance tires.
  • Users with staggered setups report good longevity, though the inability to rotate tires can accelerate wear on the rear axle.
  • Owners of lighter, nimble vehicles like the Mini Cooper report high satisfaction with handling and wet-weather performance.
Specifications

Specs side by side

Attribute A · Cooper CS7 B · Sumitomo HTR Z III
CategorySummer Premium Touring tires—
Vehicle typePassenger Car / Crossover—
Tread depth—10/32″
UTQG—300 A A
Sidewall—Blackwall
Max pressure—50 psi
Final verdict

Which one should you actually buy?

Cooper

Sumitomo

Winner: Sumitomo HTR Z III — better dry, handling and comfort. It leads or ties in every category we score.

Pick tire B You want the most grip on dry roads

Sumitomo HTR Z III scores 92 vs 80 on dry.

Pick tire B You enjoy sharp, responsive handling

Sumitomo HTR Z III scores 80 vs 70 on handling.

Pick tire B You want the most comfortable ride

Sumitomo HTR Z III scores 89 vs 80 on comfort.

Tire A · Cooper CS7
Check price on Amazon
Tire B · Sumitomo HTR Z III
Check price on Amazon

How do we compare tires?

Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements) normalized against the best tire in each test and weighted toward recent tests. 40% comes from thousands of owner reviews collected from retailers and review sites. When a tire has only one of the two, we use what exists and say so.

Community buzz from Reddit and forums is shown for context only — it never changes the score.